Wedge splitting and shaving machine.



No. 850,546. PATENTEDAPR; 16, 1907. P. B. SG'HUYLER. WEDGE SPLITTINGAND-SHAVING MACHINE. APIVLICATIONXHLED mmm, 1905.

@www M ,lineB B of Fig. 1.

FRANK B. SCHUYLER, OFSAN FRANCISCO, CALIFORNIA.

WEDGE SPLITTING AND SHAVING MACHINE.

Speccation of Letters Patent.

Patented April 16, 1907.

Application filed March 14, 1906. Serial No. 250,027.

Wedge Splitting and Shaving Machines, of'

which the following is a specification.

This invention relates to an improved machine for splitting and shavingwedges, the object of the invention being to provide a machine of thischaracter in which the knife in cutting the wedge shall have a shearingaction; alsohaving an adjustment whereby i either the thin end or thethick end of the wedge may be cut of varying degrees of thickness, asmay be desired; also, in which, in addition to the above adjustments, astill greater variation in size of wedges cut by the machine may beprovided; furthermore, to provide means in such a machine for preventingthe dulling of the knife-edge thereof.

In the accompanying drawings, Figure 1 is a plan view of the machine.Fig. 2 is a vertical section thereof on the line A A of Fig. 1. Fig. 3is a transverse vertical section on the Fig. 4 is asimilar section onthe line C C of Fig. 1.

Referring to the drawings, 1 represents a U-shaped frame, which may besecured in any desired manner, as by bolts 2, upon a ,i

piece of wood 3, which may be held in a vise when in operation. Betweenlugs 4 and against a boss 5, all cast upon said frame, is supported aninclined plane 6, secured to the frame by a screw 7, said plane beingdisposed at an acute angle with the frame. In addition there areadjusting screws 8, and by screwing said screws 8 up or down either endof the inclined plane may be raised or lowered relatively to the frame.Into a bearing 9, cast upon the frame, is screwed a bolt 10, hav ing apair of nuts 11 on the lower end thereof, which bolt forms a pivot for alink 12, to the other end of said link being fulcrumed a lever 13, saidlever being pivotally secured7 as shown at 14, to a cutter-holder 15.holder 15 has underhanging sides 16, forming grooves which receiveiianges 17, extending from the sides of the frame, and thus forming 1guides for the holder. Below said holder is secured by screws 19 acutter 20, projecting forwardly from the edge of the holder, andcentrally behind said screws 19 is a third screw 2l, screwed through theholder and bearing down upon the top of the cutter. By

said

j properly turning the screws 19, which pass loosely through the holderand are screwed through the cutter, the forward portion of the cuttermay be raised or allowed to be dropped, and thus by turning also therear screw 21 the cutter may be adjusted so as to cut in the same planeas that in which it moves, inclining neither above nor below saiddirection of movement. l The edge of the cutter, as likewise the l frontedge of the holder, is arranged obliquely to the edges of the holder andat right angles to the general direction of the inclined plane, whichinclined plane is also disposed at an acute angle with the frame on theedges of which said holder slides. The result is that the cutter,sliding on the frame, has also a transverse motion across the wood whichres-ts upon the inclined plane, thereby making a draw cut, which is veryeffective in the o eration of shaving the wedge and reduces t e powernecessary to make the cut.

Up on the end of the inclined plane is secured a layer of paper 24,firmly pressed down onto the top of said inclined plane by means of a lmetal plate 25, forced down by screws 8. The edge of this paper receivesthe impact of the sharp edge of the cutter when it has shaved the wedge,and thus prevents theblunting thereof. To prevent the cutter cuttinginto the paper too much, the holder is arrested by a screw 27.

The inclined plane is formed with a raised central longitudinal portionor` rib 28, the ob* ject being to allow for even greater variation theadjustment of the ends of the inclined lane. Thus if it is desired tocut a thin wedge the block is laid on said raised central portion; butto cut a thicker wedge the block is laid on a portion of the inclinedplane to either side of and below said. central portion.

To operate the machine, a thick or tall rectangular block of wood isheld down upon the inclined plane 6 so that the grain of the wood isparallel therewith, and the knife is then reciprocated by means of thelever. At each reciprocation as soon as theknife enters the block itsplits the block in a direction parallel with the grain or with theinclined plane 6. A small rectangular block is thus split off at thebottom of the main block. It is necessary to form this small rectangularpiece into a wedge, and this is done by the continued advance of theknife in a horizontal plane at an angle with the bottom of said blockresting on in the size of the wedge than is permitted by I IOO IOS

IIO

the inclined plane. Thereby the small block is formed into a Wedge, theupper portion thereof being discarded. The rest of the main block isthen laid down again upon the inclined plane and the operation isrepeated.

I claim In a machine of the character described, the combination of aframe having side flanges, a knife-holder having underhanging sidesforming grooves engaging said flanges, a knife depending from saidholder and secured thereto by means of screws, the holder being bentdownat its front edge to form a lip bearing upon said knife, and anadjusting-screw the frame for the article to be cut by the knife,

substantially as described.

In Witness whereof I have hereunto set my hand in the presence of twosubscribing Wit- IIGSSGS.

F. B. SCHUYLER. Witnesses:

FRANCIS M. WRIGHT, Bnssin GORFINKEL.

